'I couldn't believe my eyes': Victorian prospector unearths 145-ounce gold nugget

The hobbyist found the "colossal" nugget while scouring Victoria's Golden Triangle on Friday.

It came just one day after he found a nine-ounce tennis ball-shaped nugget more than 60 centimetres deep.

'I couldn't believe my eyes': Victorian prospector unearths 145-ounce gold nugget